In cases 1 to 3, what does the vessel contain – gas, liquid, solid, or a mixture of phases? if it is a two-phase mixture, what is the quality? in all cases, what is the temperature of the container?
(1) a 20-liter vessel that contains 50 g of water at 10 bar.
(2) a 20-liter vessel that contains 17.8 kg of water at 50 bar.
(3) a 20-liter vessel that contains 200 g of water at 10 bar.
approximate answers: (1)t 600 degree c. (2)t 200 degree c. (3)t 200 degree c.

The solid that is formed and usually sinks to the bottom of a solution is the

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.

12. a body is a particular amount of matter. it can be a solid, liquid or gas. it can be described as existing in a. size and shape. b. motion and force c. time and space. d. location and movement.